Tim Armstrong has posted comments on this change. Change subject: Use AVX2 operations to speedup Bloom filter insert by 10-50%. ......................................................................
Patch Set 4: It looks like if we set the -B option to gcc (like we do for USE_GOLD_LINKER), it should pick up the as from the toolchain binutils, so maybe that's something we can look to do? /opt/Impala-Toolchain/gcc-4.9.2/bin/gcc -B /opt/Impala-Toolchain/binutils-2.26/bin/ --print-search-dirs Based on the microbenchmark, this looks promising, but it's probably just masked by slowness in the interpreted hashing. -- To view, visit http://gerrit.cloudera.org:8080/3338 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: I6fef4f6652876f8fd7e3f0e41431702380418c98 Gerrit-PatchSet: 4 Gerrit-Project: Impala Gerrit-Branch: cdh5-trunk Gerrit-Owner: Jim Apple <[email protected]> Gerrit-Reviewer: Jim Apple <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]> Gerrit-HasComments: No
